This is a used pair of SONY LinkBuds open WF-L910 BZ black wireless stereo headphones. Used only once. These are open-ear headphones, not the ear cuff or bone conduction type that are currently popular. They are the type that goes into the ear canal, but you can still hear outside sounds normally. They are in-ear type, so they don't stand out, and they don't interfere with glasses. However, you can still hear outside sounds clearly, making them versatile for use when going out or in web conferences. Also, you can make detailed settings and operations with the Sound Connect app, which is quite well-designed. Please understand that these are used items, having been used once, before purchasing. They have been cleaned with a disinfectant wipe before being listed.